Tool for boring or reaming devices having openings of enlarged internal diameters.



Pa'tentd Nov. 26, I90l. M. A. WILLIAMS.

INTERNAL DIAMETEBS.

(Application filed May 23, 1901,.)

A ORA/E) INVENTOI? Tflases Zfdaams,

TOOL FOR BORING OR REAMING DEVICES HAVING OPENINGS OF ENLARGED (NoModel.)

W/TNESSES No. 687,390. Patented Nov. 26, l90l.

m. A. WILLIAMS. TOOL FOR BORING 0R REANIING DEVICES. HAVING OPENINGS 0FENLARGED INTERNAL DIAMETEBS. (Application filed May 23, 1901.) (NoModel.) 2 Shaets-$heet 2.

WITNESSES INVENTOI? mJe@ .mzzia limam than that of the end openings.

UNITED STATES PATENT .FFlCE.

MOSES A. WILLIAMS, OF BRAZIL, INDIANA.

TOOL FOR BORING OR REAMING DEVICES HAVING OPENINGS OF ENLARGED INTERNALDIAMETERS.

SPEOIFIGATION forming part of Letters IPatent No. 687,390, datedNovember 26, 1901.

Application filed May 23,1901. Serial No. 61,562. (No model.)

To all whom it may concerns Be it known thatI, Moses A. WILLIAMS, acitizen of the United States, residing at Brazil, in the county of Clayand State of Indiana, have invented certain new and useful Improvementsin Tools for Boring or Beaming Devices Having Openings of EnlargedInternal Diameters,'of which the following is a specification.

The object of my said invention is to provide a tool for boring orreaming in devices where a larger internal diameter is required It isfrequentlydesirable, for example, to make turnbuckles of such form andcharacter that a headed rod end can be inserted in one end of theturnbuckle structure, so that a swivel is formed, thus providing theturnbuckle with one swivel end and one screw end. To do this properly,one internal face of the turnbuckle needs to be machined. That varietyof turnbuckles illustrated, for example, in the Charles H. Williamspatent, No. 373,871, dated November 29, 1887, while of a superiorcharacter as an ordinary turnbuckle,has heretofore not been practicablefor a turnbuckle of the variety stated, for the reason that nopracticable means existed for machining the surface upon which the headof the swivel should rest. I

It is the object of my present invention to provide a tool or reamer bymeans of which such machining may be effectively and economicallyperformed, thus adapting turnbuckles of the variety in question to befitted in the manner stated or performing other similar work.

Said invention consists of a tool adapted to the purpose, as will behereinafter more particularly described and claimed.

Referring to the accompanying drawings, which are made a part hereof,and on which similar reference characters indicate corresponding parts,Figure 1 is a side elevation of a turnbuckle-blank being operated uponby one of my improved tools, thus illustrat ing one of the uses of saidtool;-Fig. 2,'a central vertical sectional View thereof, the cuttingmember of the tool being also shown in section; Fig. 3, a longitudinalsectional view of the finished turnbuckle after the tool has done itswork and been removed, the positions of the rod ends therein being shownby means of dotted lines; Fig. t, ahorizontal sectional view as seenwhen looking downwardly from the dotted line 4 tin Figs. 1 and 2; Fig.5, a view similar to Fig. 4, with the cuttingtool turned at right angleswith its former position; Fig. 6, a horizontal sectional view throughthe turnbuckle at a point indicated by the dotted line 6 6, showing theinterior of the turnbuckle end after the same has been machined and thework of my improved tool is completed and the tool itself removed; Fig.7, an end elevation of the bottom end of the cuttingtool separately;Fig. 8, aside elevation of the cutting-tool and guide-pin separately onan enlarged scale; Fig. 9, a side elevation of the guide-pin separately;Fig. 10, a topplan of the cutting-tool separately, and Fig. 11 a bottomplan of the cutting-tool separately.

The turnbuckle-blank 15, in connection with which the use of my improvedtool is illustrated, is made and finished in the ordinary manner, withits ends turned off and the perforations therein finished by boring ordrilling. The cutting-tool 16 is then inserted therein through one ofthe open sides thereof, said tool having two of its sides flattened toenable it to enter, being otherwise circular in cross-section and of thediameter which it is desired the finished bearing for.

the headed bolt endshall be. A guide-pin 17 is secured to the point ofthis cutting-tool and is of approximately the same diameter as theperforation in the end of the turnbuckle, and is adapted to enter and beguided by the said perforation. As the tool is driven downward the guideobviously maintains the tool in a central position in the blank, so thatthe resulting seat is the same on all sides of the perforation. Thisguide, while rigid with the cutting-tool, is removable therefrom, sothat it may be removed when it is necessary to sharpen said tool. Theunion between these two parts is conveniently effected by forming ascrew-threaded perforation in the lower end of the cutting-tool andproviding a correspondingly-screw-threaded stud on the upper end of theguide, the screw-threads being formed reversely to the travel of thetool, so that the tool and guide will not become disconnected in use.After the cutting-tool and its guide are in place a shank 18 is insertedthrough the perforation at the opposite end of the turnbuckle-blank andenters a suitable perforation in the upper end of the cutting-tool, theformation being such (it is shown as square) that while the shank can bereadily inserted and removed longitudinally it will, when inserted andrevolved, also revolve the cutting-tool. This shank at its outer end isadapted to be grasped by a chuck and driven by an ordinary drill-pressor lathe in the ordinary and well-known manner of driving tools in suchmachines.

While this tool has been especially designed for finishing swivel-headseats in turnbuckleblanks and has been illustrated as it appears whenperforming that work, it may be used wherever an enlarged internaldiameter is' required, as will be readily understood, and I desire to beunderstood as claiming it for any use of which it is capable.

Having thus fully described my said invention, what I claim as new, anddesire to secure by Letters Patent, is-

l. A tool for boring or reaming in devices having openings of enlargedinternal diameters comprising a cutting-tool adapted to be insertedwithin the body of the turnbuckleblank, aguide on the cutting end ofsaid tool adapted to enter the perforation in one end of theturnbuckle-blank, and a shank adapted to be inserted through theperforation in the other end of the turnbuckle-blank and engage with anddrive said cutting-tool, said tool as a whole being adapted to be drivenby an ordinary machine, as a drill-press or lathe, substantially as andfor the purpose set forth.

2. The combination in a tool for boring or reaming devices havingenlarged internal diameters, of a cutting-tool having certain of itssides cut away whereby it is capable of entering through the exterioropenings of such devices into the enlarged internal chamber therein, aguide for holding said cuttingtool to central position removably securedto the cutting end thereof, and a driver adapted to removably engagewith the other end.

3. The combination in a tool for boring or reaming devices havingenlarged internal diameters provided with one or more openings of lessdiameter extending to the outside, of a cutting-tool one diameterwhereof is substantially equal to the internal diameter of the device tobe bored or reamed while the other is reduced sufficiently to permit itto enter through the openings extending to the outside, a guideextending out centrally from the cutting end of the cutting-tool, and adriving shaft or stem adapted to engage with the opposite end of saidcutting-tool, said guide and said shaft or stem being of smallerdiameter than the bodyof the cutting-to01.

In witness whereof I have hereunto set my hand and seal, at Brazil,Indiana, this 20th day of May, A. D. 1901.

MOSES A. WILLIAMS. [L. s.]

Witnesses:

H. D. FALLS, G. S. YORK.

